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  <meta charset="UTF-8">
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  <title>Document</title>
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<body>
  <script>
    const arr = [
      { id: 1, name: '西瓜', state: true },
      { id: 2, name: '榴莲', state: false },
      { id: 3, name: '草莓', state: true },
    ]

    // 需求：判断数组中，水果是否被全选了！
    const result = arr.every(item => item.state)
    console.log(result)
  </script>
</body>

</html>